Father of youngest Manchester Arena victim plans to sue MI5

Agency has ‘most of the blame’, says Andrew Roussos, whose eight-year-old daughter died in 2017 bombing

The father of the youngest victim of the Manchester Arena bombing has said he intends to sue MI5 as it has “most of the blame” for the attack.

The security service’s director general, Ken McCallum, issued a public apology after the inquiry into the May 2017 atrocity found it might have been prevented if MI5 had acted on intelligence received in the months before.